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Rechargeable lithium batteries also known as lithium-ion batteries is a kind of rechargeable battery that utilizes intercalated lithium compound for its electrode material. This rechargeable battery is commonly used for portable consumer electronic products, medical devices, and military hardware. The popularity of rechargeable lithium batteries may be caused by its advantages over other forms of rechargeable batteries and here are several of them.

First of all, rechargeable lithium batteries have the most amount of energy density for any kind of rechargeable batteries.

They can store a lot of energy compared to other types of rechargeable batteries considering their size. This is because lithium is a highly reactive element which allows for a huge amount of energy to be stored in its atomic bonds. Furthermore, they also are made with high open circuit voltage, which enables it to transfer more energy at a lower rate of current. Hence it is recommended for devices that uses up a lot of energy such as mp3 players, computers, laptops, cameras, and the like.

Another important advantage of rechargeable lithium batteries is that they can be constructed into a variety of shapes and sizes, making them suitable for various devices.

Furthermore, lithium-ion batteries are not heavy. That is the reason why they are recommended for medical devices since they need batteries that are not bulky and must be able to last for an extended period of time. Rechargeable lithium batteries are commonly used on drug infusion systems, neurostimulators, cardiac defibrillators, and cardiac pacemakers. Additionally, there is the most recent form of rechargeable lithium-ion batteries, named lithium-ion polymer batteries, which can be produced as thin as a wafer and yet still be flexible and reliable.

Lastly, rechargeable lithium batteries have a very long shelf life because they have a low self-discharge rate.

Indeed, rechargeable lithium batteries can keep their charge and lose only approximately 5-10% of their power for a month of storage, while nickel cadmiums and nickel metal hydrides can lose around 1-5% of their energy daily, even when they are not connected to any device Furthermore, rechargeable lithium batteries can survive up to hundreds of charge/discharge cycles.

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